Hi. I polished my zc.zodbdgc a bit and published them at http://zodb.org/documentation/articles/multi-zodb-gc.html
Those include a description on using the reference database to find and fix PosKeyErrors (tested by Andreas). The source is at svn+ssh://svn.zope.org/repos/main/zodbdocs/trunk/documentation/articles/multi-zodb-gc.rst. Any feedback is welcome, Hanno P.S. The buildout config is rather complicated, as it's derived from a Plone production system - maybe it's possible to simplify that. _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org https://mail.zope.org/mailman/listinfo/zodb-dev